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/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
*
* This file is part of LVM2.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License v.2.1.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "tools.h"
#include "lvm-types.h"
/*
* lvrename command implementation.
* Check arguments and call lv_rename() to execute the request.
*/
int lvrename(struct cmd_context *cmd, int argc, char **argv)
{
size_t maxlen;
char *lv_name_old, *lv_name_new;
const char *vg_name, *vg_name_new, *vg_name_old;
char *st;
int r = ECMD_FAILED;
struct volume_group *vg = NULL;
struct lv_list *lvl;
if (argc == 3) {
vg_name = skip_dev_dir(cmd, argv[0], NULL);
lv_name_old = argv[1];
lv_name_new = argv[2];
if (strchr(lv_name_old, '/') &&
(vg_name_old = extract_vgname(cmd, lv_name_old)) &&
strcmp(vg_name_old, vg_name)) {
log_error("Please use a single volume group name "
"(\"%s\" or \"%s\")", vg_name, vg_name_old);
return EINVALID_CMD_LINE;
}
} else if (argc == 2) {
lv_name_old = argv[0];
lv_name_new = argv[1];
vg_name = extract_vgname(cmd, lv_name_old);
} else {
log_error("Old and new logical volume names required");
return EINVALID_CMD_LINE;
}
if (!validate_name(vg_name)) {
log_error("Please provide a valid volume group name");
return EINVALID_CMD_LINE;
}
if (strchr(lv_name_new, '/') &&
(vg_name_new = extract_vgname(cmd, lv_name_new)) &&
strcmp(vg_name, vg_name_new)) {
log_error("Logical volume names must "
"have the same volume group (\"%s\" or \"%s\")",
vg_name, vg_name_new);
return EINVALID_CMD_LINE;
}
if ((st = strrchr(lv_name_old, '/')))
lv_name_old = st + 1;
if ((st = strrchr(lv_name_new, '/')))
lv_name_new = st + 1;
/* Check sanity of new name */
maxlen = NAME_LEN - strlen(vg_name) - strlen(cmd->dev_dir) - 3;
if (strlen(lv_name_new) > maxlen) {
log_error("New logical volume path exceeds maximum length "
"of %" PRIsize_t "!", maxlen);
return ECMD_FAILED;
}
if (!*lv_name_new) {
log_error("New logical volume name may not be blank");
return ECMD_FAILED;
}
if (!apply_lvname_restrictions(lv_name_new)) {
stack;
return ECMD_FAILED;
}
if (!validate_name(lv_name_new)) {
log_error("New logical volume name \"%s\" is invalid",
lv_name_new);
return EINVALID_CMD_LINE;
}
if (!strcmp(lv_name_old, lv_name_new)) {
log_error("Old and new logical volume names must differ");
return EINVALID_CMD_LINE;
}
log_verbose("Checking for existing volume group \"%s\"", vg_name);
vg = vg_read_for_update(cmd, vg_name, NULL, 0);
if (vg_read_error(vg)) {
free_vg(vg);
stack;
return ECMD_FAILED;
}
if (!(lvl = find_lv_in_vg(vg, lv_name_old))) {
log_error("Existing logical volume \"%s\" not found in "
"volume group \"%s\"", lv_name_old, vg_name);
goto error;
}
if (!lv_rename(cmd, lvl->lv, lv_name_new))
goto error;
log_print("Renamed \"%s\" to \"%s\" in volume group \"%s\"",
lv_name_old, lv_name_new, vg_name);
r = ECMD_PROCESSED;
error:
unlock_and_free_vg(cmd, vg, vg_name);
return r;
}
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